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https://github.com/LMMS/lmms.git
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857de8d2c8
Well, this commit got a bit out of hand, what with 26 files changed. Oh well. Basically, we're using the buffermanager to dispense temporary buffers for playhandles and audioports to use. This allows us to change the way playhandles work. Earlier, playhandles of the same track were waiting in line to push their output to the audioport. This was of course inefficient, so now they just register themselves to the port, then the port handles mixing the buffers. Caveat: this is still a work in progress, the vol/pan knobs on instruments are temporarily non-functional - will be fixed in the next commit, but I have to get some sleep now.
124 lines
2.7 KiB
C++
124 lines
2.7 KiB
C++
/*
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* MixerWorkerThread.h - declaration of class MixerWorkerThread
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*
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* Copyright (c) 2009-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of LMMS - http://lmms.io
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef MIXER_WORKER_THREAD_H
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#define MIXER_WORKER_THREAD_H
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#include <QtCore/QAtomicPointer>
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#include <QtCore/QThread>
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#include "ThreadableJob.h"
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#include "Mixer.h"
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#ifdef __SSE__
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#include <xmmintrin.h>
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#endif
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#ifdef __SSE3__
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#include <pmmintrin.h>
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#endif
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class MixerWorkerThread : public QThread
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{
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public:
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// internal representation of the job queue - all functions are thread-safe
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class JobQueue
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{
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public:
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enum OperationMode
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{
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Static, // no jobs added while processing queue
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Dynamic // jobs can be added while processing queue
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} ;
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JobQueue() :
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m_items(),
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m_queueSize( 0 ),
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m_itemsDone( 0 ),
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m_opMode( Static )
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{
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}
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void reset( OperationMode _opMode );
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void addJob( ThreadableJob * _job );
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void run();
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void wait();
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private:
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#define JOB_QUEUE_SIZE 1024
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QAtomicPointer<ThreadableJob> m_items[JOB_QUEUE_SIZE];
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QAtomicInt m_queueSize;
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QAtomicInt m_itemsDone;
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OperationMode m_opMode;
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} ;
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MixerWorkerThread( Mixer* mixer );
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virtual ~MixerWorkerThread();
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virtual void quit();
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static void resetJobQueue( JobQueue::OperationMode _opMode =
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JobQueue::Static )
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{
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globalJobQueue.reset( _opMode );
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}
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static void addJob( ThreadableJob * _job )
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{
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globalJobQueue.addJob( _job );
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}
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// a convenient helper function allowing to pass a container with pointers
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// to ThreadableJob objects
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template<typename T>
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static void fillJobQueue( const T & _vec,
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JobQueue::OperationMode _opMode = JobQueue::Static )
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{
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resetJobQueue( _opMode );
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for( typename T::ConstIterator it = _vec.begin(); it != _vec.end(); ++it )
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{
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addJob( *it );
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}
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}
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static void startAndWaitForJobs();
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private:
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virtual void run();
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static JobQueue globalJobQueue;
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static QWaitCondition * queueReadyWaitCond;
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static QList<MixerWorkerThread *> workerThreads;
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volatile bool m_quit;
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} ;
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#endif
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